BlizzCon 2016 will finally get started in a matter of hours and we're anticipating a lot of Overwatch, Diablo 3, Hearthstone and World of Warcraft news over the course of the next two days, on top of an action-packed schedule of eSports tournaments.

It's anticipated that after months of ARG (alternate reality game) teasing we might finally see the full reveal for a new Overwatch hacker character named Sombra. Likewise, a small leak has got some Diablo 3 fans dreaming of a new Necromancer class and even a new expansion to the game. Not to be outdone, Hearthstone fans should also expect to see some sort of Gadgetzan expansion to the popular free-to-play online collectible card video game.

This year’s sold-out BlizzCon 2016 show in Anaheim, California marks the 10th BlizzCon celebration and commemorates Blizzard’s 25th anniversary. If you're not one of the lucky few to make it, you can still be part of the fun with the BlizzCon Virtual Ticket, available at www.blizzcon.com

Blizzard will also be broadcasting the opening ceremony and this year's esports tournaments - which includes the Overwatch World Cup Finals, Hearthstone World Championship, World of Warcraft Arena World Championship, Heroes of the Storm Fall Championship and StarCraft II WCS Global Finals - on www.blizzcon.com for free.

Between each tournament will also be a variety of events and activities, including developer discussion panels, incredible community-created movies, art, and costumes as well as a performance by Grammy-winning pop parodist “Weird Al” Yankovic.

OVERWATCH fans will be praying that the long wait for the games new character Sombra will at long last come to an end following months of prolonged and convoluted ARG teases on top of some more recent leaked artwork.

The new character is described as "one of the world’s best and most notorious hackers”, or at least she is according to a leaked memo that was discovered alongside the Halloween update.

Sombra is said to have lost everything during the Omnic Crisis, before working with the Los Muertos gang in Mexico and then being recruited by Talon.

Recent reddit reveals have exposed another mystery to the character with more signs indicating that she'll be revealed by Blizzard at BlizzCon 2016.

The most recent ARG ended with a message which read: “Good job, friends. I wouldn't have done it without your help. Anyways, you got me the resources I needed for my next job - you'll love it. Await news from me in the coming days… Dasvidanya friends.”

Whether Sombra is revealed before, after or during the main BlizzCon keynote is unknown, but some Redditors have suggested Sombra might “hack” BlizzCon to make a dramatic entrance.

Following that it'll turn over to the Overwatch World Cup, with finals taking place during BlizzCon at 6.30pm UK time, on Saturday (November 5).

DIABLO 3 will also be looking to make a splash at the event and it's possible that we could see a new playable character class revealed during BlizzCon 2016.

This is the belief of several outlets following another leaked piece of concept art, this time showing a Necromancer stood over several bodies.

The art was discovered via Eurogamer Blizzard's official gear store, which is the same place where the recent Overwatch art leak for Sombra was also discovered.

It's impossible to say for certain if the artwork uncovered is indeed from Diablo, but given that it included the signature of Blizzard art director John Mueller and had a URL which reportedly said "Necromancer" - which was a class playable in Diablo II but not Diablo III - there's every reason to believe we could see a new class joining the game.

Recent weeks has also seen some talk of a Diablo 4 reveal, however with this latest character reveal, we would guess that it's more likely to see some form of expansion to the game to welcome this new class into the game.

Heathstone will also be looking to use BlizzCon 2016 as a fantastic chance to launch their next big expansion known as Gadgetzan, following the Whispers of the Old Gods set, and the One Night in Karazhan adventure.

Gadgetzan is World of Warcraft's neutral goblin trading post and the official Twitter feed for the game more recently shared a postcard sent from Gadgetzan

A Reddit user also recently uncovered that Blizzard owns the domain Gadgetzan.com which further points to some expansion in the works.

Gaming cleverclogs over at IGN have suggested that given Gadgetzan's affiliation with goblins, "it's likely we'd see cards based around (possibly faulty) mechanical contraptions and the concept of greed."

IGN also noted that the postcard also contained some hidden text around the corner of the image which read:

"The word "safe" is not meant to constitute a binding agreement and does not imply safety, security, protection, preservation, peace of mind, confidence, reliability, dependability or trustworthiness. Mayor Noggenfogger is not responsible for any accidents, surgeries, thoughtsteals, mind visions, hellfires, vanishes, whirlwinds, revenges, lightbombs, elemental destructions, excavated evils, consecrations, holy novas, flamestrikes, demonwraths, starfalls, shadowflames, swipes, explosive traps, arcane explosions, brawls, DOOM!s, lightning storms, blizzards, twisting nethers and other Acts of Old Gods, magical mayhem or disfigurement that may ensue. No beasts, demons, dragons, mechs, murlocs, pirates or totems were harmed, abused, disfigured, dismembered, declawed, detailed, decomissioned, exorcised, disarmed or toppled in the creation of this postcard. We take no responsibility on any claims made on this (souvenir?) of propaganda, or any predictions, suppositions, predictions, prophecies, harbingers, omens, portents, or conclusions that may arise."

Although it can't be said when Heathstone might be looking to launch the latest expansion to the game, it seems fairly on the money that they'll reveal all this weekend.